TYPO3 Core

Slugs of root pages inside sys folders cannot be edited. Because of this, the slug of subpages will contain an unwanted url part of the root page.

How to reproduce (TYPO3 9.5.5):

• Create a sys folder
• Create a normal page inside this sys folder
• Edit the page, make a root page out of it and save
• Add the site configuration for this specific root page
• Create a page inside the root page and edit this page
• Now have a look at the slug. It contains the slug of the root page
• The slug can be edited manually for the child pages, but this gets complicated if there are many pages

What we expect:

The slug of a root page should be editable so that we can make a slash out of it.